Back box-plate for looms.



Patented Aug. l, I899. J. H. NOBTHROP. BACK BOX PLATE FOR LUOMS.

(Application filed Mar. 8, 1899.)

{No Model.)

mllllllli]! UNITED STATES PATENT OFFICE.

JAMES H. NORTHROP, OF TUSTIN, CALIFORNIA, 'ASSIGNQR TO THE DRAPER COMPANY, OF PGRTLAND, MAINE, AND HOPEDALE, MASSACHUSETTS.

BACK BOX- PLATE FO R LOOM S.

SPECIFICATION forming part of Letters Patent No. 630,097, dated August 1, 1899.

Application filed March 8, 1899. Serial No. 708,175. (No model.)

To all whom it may concern.- The separate side member D of the box Be it known that I, JAMES H. NORTHROP, plate (shown separately in Figs. 4 and 5) is of Tustin, county of Orange, State of Oaliforcast with a plane front face d and a longitunia, have invented an Improvement in Back dinal ledge or flange d on its rear face, at its 5 Box-Plates for Looms, of which the following lower edge, said flange at the outer end hedescription, in connection with the accompaing extended to form a foot or support 61 for nying drawings, is a specification, like letters the back binder B to move over. and figures on the drawings representing like The top of the side member D is curved at parts. its inner end, as at 1 to fit the under side of 10 This invention relates to looms for weavthe coverO at its inner end, and arearwardlying, and has for its particular object the proextended ear d" on the side member extends duction of a novel back box-plate whereby beneath the ear 0 of the cover when the the cost of production is reduced and the conmembers are assembled, said car 01 having a struction simplified. hole 20 to receive the fastening-bolt e As 1 5 Heret-ofore the side and cover of the back best shown in Figs. 4 and 5, the top of the ear box-plate have usually been made as a single 61 is made slightly higher than the depth of piece, and the finishing of the front and rear the castingD,adjacent thereto,tobear against faces of the side and the under face of the the under side of the ear 0 on the cover 0-, cover have been attended by considerable so that only the opposed faces of said ears re= 2o difficulty and expense, owing to the peculiar quire to be accurately finished.

shape of the casting. In the present inven- The side memberD is ribbed on the back ad- 7 5 tion the side and cover are made separately jacent the ear d to present, as herein shown, and thereafter rigidly connected, the separafour bearings d which abut against the face tion of the parts enabling the finishing of the of the lay-sword, a hole d in the side mem- 2 5 faces to be readily and cheaply effected and her receiving the top bolt tZ ,Fig. 2, by which providing for the ready replacement of either it is secured to the lay-sword. part when necessary. \Vhen finishing the parts, the front face at Figure 1 is a top or plan view of one end of of the side member D is readily machined to a lay-beam provided with a back box-plate present a true plane and polished surface,

30 embodying one form of my invention. Fig. and the bearings 61 back of the member D 2 is a front elevation thereof. Figs. 3 and 4. can also be as readily finished, and by reason are perspective views, slightly enlarged,of the of the fact that the cover member 0 is a sepaboX-plate, cover, and side, respectively, and rate piece its under face can also be easily Fig. 5 is a rear side elevation of the box-plate and cheaply finished and polished.

3 5 side. Having fully described myinvention, what The lay A, longitudinally slotted at a for I claim, and desire to secure by Letters Patgo the picker-stick I the lay-sword A handcut, israil R, and the back binder B, mounted to A back box -plate for looms, comprising rock on the vertical pivot-stud b, may be and separate cover and side members, said cover 0 are of usual or well-known construction. member having a rearwardly-extended ear,

The back boX- plate cover member (3 is an car on the back of the side member rising 5 herein shown as a casting of suitable shape, above the upper edge of the latter, to abut tapering toward its outer end and provided against the ear on the cover member, and a with a socketed eye a for the pivot-stud 2), connection to engage said ears and rigidly 5 the inner end of the cover being broadened connect said cover and side members.

and slightly upturned, as at 0, Figs. 1 and 3, In testimony whereof I have signed my the general shape of the cover member being name to this specification in the presence of substantially that of the corresponding portwo subscribing witnesses. tion of box-plates now in use. An ear or 50 projection 0 projects rearwardly from the JAMES H. NORTHROP.

plate, provided with a slightly-elongated hole 0 for the reception of the fastening-bolt 0 IVitnesses:

Figs. 1 and 2, by which the cover and side of GEO. HUNTINGTON, the box-plate are connected. ELIDA A. HUNTINGTON. 

